diff --git a/class01/2348/dangdang.js b/class01/2348/dangdang.js
new file mode 100644
index 0000000..bf7c6e8
--- /dev/null
+++ b/class01/2348/dangdang.js
@@ -0,0 +1,27 @@
+const readline = require('readline');
+
+const rl = readline.createInterface({
+	input: process.stdin,
+	output: process.stdout
+});
+
+rl.on('line', (line) => {
+	solution(line);
+	rl.close();
+});
+
+rl.on('close', () => {
+	process.exit();
+});
+
+
+function solution(line) {
+	const number = parseInt(line);
+
+	for (let i = 1; i <= number; i++) {
+		for (let j = 0; j < i; j++) {
+			process.stdout.write('*');
+		}
+		process.stdout.write('\n');
+	}
+}
\ No newline at end of file